31300230019 has 2 divisors, whose sum is σ = 31300230020. Its totient is φ = 31300230018.

The previous prime is 31300230001. The next prime is 31300230043. The reversal of 31300230019 is 91003200313.

It is a weak prime.

It is an emirp because it is prime and its reverse (91003200313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31300230019 is a prime.

It is a super-2 number, since 2×31300230019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31300230079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650115009 + 15650115010.

It is an arithmetic number, because the mean of its divisors is an integer number (15650115010).

Almost surely, 2^31300230019 is an apocalyptic number.

31300230019 is a deficient number, since it is larger than the sum of its proper divisors (1).

31300230019 is an equidigital number, since it uses as much as digits as its factorization.

31300230019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

The spelling of 31300230019 in words is "thirty-one billion, three hundred million, two hundred thirty thousand, nineteen".